Question

The marks of Riju in Mathematics test increased from 20 to 30. What is the percentage of increase?

Answer 1

Explanation:

❀
`\underline{ \underline{ \text{Given}}} :`

• Initial marks of Riju = 20
• Final marks of Riju = 30

Then, Increment of the marks = 30 - 20 = 10

❀
`\underline{ \underline{ \text{To \: find}}} :`

• Percentage of increment

❀
`\underline{ \underline{ \text{Solution}}} :`

`\boxed{ \sf{Percentage \: of \: increment = (Increase \: of \: marks)/(Initial \: marks) * 100\%}}`

⇒
`\sf{ (10)/(20) * 100\%}`

⇒
`\boxed{ \sf{50 \: \%}}`

`\pink{ \boxed{ \boxed{ \bold{ \tt{Our \: final \: answer : \boxed{ \underline{ \tt{50\%}}}}}}}}`

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